Title
Spectroscopy of major Biochemical Compounds of Coffee Beans: Caffeine, Chlorogenic, UVVis Spectroscopy,Used
Delivery time: 8-12 business days (International)
The molecular spectroscopy which works in the wavelength regions of UVVis have various applications. For quantitative determination species in mixtures, characterization of pure compound, identification of the presence or absence of a particular species in a mixture or certain functional groups in a compound. It also used to study selfassociation, heteroassociation and thermodynamic properties of compound.Thus, in this research, the contents of caffeine and chlorogenicacids in coffee beans have been investigated by spectroscopic and theoretical methods.In addition, the optical transition properties of caffeine, caffeic and 5caffeoylquinic acids were determined in different solvents by integrating the absorption coefficients. Moreover, the concentration dependent selfassociation of caffeic, 5caffeoylquinic acids and their hetero association were analyzed by dimer model and Benesi Hildebrand approaches. The thermodynamic parameters, enthalpy, Gibbs free energy and entropy of dimerzation reactions were calculated from van't Hoff equation.
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⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, please visit www.P65Warnings.ca.gov.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.